president obama just responded to this. we're live in michigan tonight. >>> and it's a political battle for the ages. we'll tell you why first lady michelle obama and former president bill clinton are going head to head. you're watching "politicsnation" on msnbc. >>> i just spotted mitt romney at costco again. go ahead and return that oval rug you ordered. [ male announcer ] now's the perfect time to buy an adjustable version of the most highly recommended bed in america. the tempur-pedic ergo system. treat yourself to the ultimate sleep experience and save up to $400 during the tempur ergo savings event. plus visit tempurpedic.com for full details on our 0% apr financing with up to five years to pay. don't wait. five-year special financing ends december 10th. visit tempurpedic.com now. tempur-pedic. the most highly recommended bed in america. >>> have you joined it the "politicsnation" conversation on facebook yet? we hope you will. today everyone was speculating about what jim demint's resignation means with the tea party